Because of their excellent performance and broad application prospects, the researches of silver nano-composite materials have attracted intensive attention in recent years. The methods used for chemical preparation of silver nano-materials and silver nanocomposites are summarized, including chemical reduction method, light reduction method, microemulsion, and electrochemical method, in which the chemical reduction method is the most widely studied and used due to easily controlling size and morphology of nano-silverparticles and having relatively low preparation costs. The trend and potential applications of silver nano-materials are analyzed, including catalysis, antibacterial materials, electronic circuit, SERS and other areas in which silver nano-composites were used commercially in the oxidation of ethylene to ethylene oxide as catalyst and in antibacterial plastics as fungicide. Controlling the size and the morphology of silver nanoparticles and developing its new performances will be the direction of future researches.
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